Professional-grade scale for monitoring weight, time, and flow rate during coffee brewing The Acaia Pearl Model S is a professional-grade smart scale that brings consistency and insight to your coffee brewing. It provides all the help you will need to make that perfect cup of coffee with its essential brewing modes, real time flow-rate display and the all new built-in Acaia interactive coffee brewing guide. Acaia Pearl Model S makes sharing coffee recipes easy and it's designed to display coffee brewing guides so you can upload your recipe to the app and share it with anyone. The real-time flowrate indicator can assist and elevate your pour-over technique. You are in control of how you brew. Behind the simple and uncluttered design of Acaia is an attention to detail and quality, Acaia hand-builds and calibrates every scale. Simplicity is the ultimate sophistication.